Vol. XXVII, pp. 115 118 July 10, 1914 PROCEEDINGS OF THE BIOLOGICAL SOCIETY OF WASHINGTON ELEVEN NEW SPECIES AND SUBSPECIES OF POCKET GOPHERS OF THE GENUS THOMOMYS. BY VERNON BAILEY. The following brief diagnoses of eleven new pocket gophers are published in advance of a monograph of the genus Thomomys , now nearing completion. The types are all in the Biological Survey Collection in the U. S. National Museum. Thomomys talpoides bullatus subsp. nov. SAGE-BRUSH GOPHER. Type from Powderville, Montana. Adult cT, No. 55,795, U. S. Nat. Mas., Biological Survey Collection. Collected July 2 1, 1893, by Dr. A. K. Fisher; original number, 1402. Characters. — Size of talpoides , but with larger andital bullap , lighter dentition and brighter colors. Considerably larger than elusius , with less gray on cheeks. Upperparts light butfy hazel, brightest on crown, ear patch blackish; lowerparts butfy, sometimes with white on chin; feet and tail whitish. Measurements of type . — Total length, 23-8; tail vertebrae, 72; hind foot, 30. Thomomys talpoides caryi subsp. nov. BIGHORN MOUNTAIN GOPHER. Type from the head of Trapper Creek at 9500 feet altitude in the Big- horn Mountains, Wyoming. Adult 9, No. 108,940, IT. S. Nat. Mus., Biological Survey Collection. Collected June 10, 1910, by Merritt Cary; original number, 1993. Characters. — Size about ihe same as elusius , or slightly smaller; skull with smaller bulke and wider interparietal; colors slightly darker, without gray cheeks. Upperparts dull grayish brown, with plumbeous nose and blackish ear patch; lowerparts rich butfy, with white on chin and some- times on breast; feet soiled whitish; tail gray or butfy with whitish tip. 27— Proc. Biol. Soc. Wash., Vol, XXVII, 19H. (115) 116 Proceedings of the Biologiccd Society of Washington. Measurements of type. — Total length, 196; tail vertebrae, 54; hind foot, 26. More fully adult 9 topotype, 203, 53, 28. Thomomys talpoides nebulosus subsp. nov. BLACK HILLS GOPHER. Type from Sand Creek Canyon, Black Hills, Wyoming (Jack Boyden’s Ranch, 5 miles above mouth of canyon, at 3750 feet altitude). Adult <? , No. 202,495, U. S. Nat. Mus., Biological Survey Collection. Collected August 25, 1913, by Vernon Bailey; original number, 9508. Characters.— Size of talpoides, skull slender, less ridged, dentition lighter, bullae slightly more rounded. Color warm brown, much as in fossor. Upperparts dull walnut brown; nose plumbeous or dusky; ear patch blackish ; lowerparts huffy, generally with white on chin and some- times on breast; feet and tail whitish gray or huffy. Measurements of type.— Total length, 230; tail vertebrae, 66; hind foot, approximately 32 (27 without claws). Thomomys pryori sp. nov. PRYOR MOUNTAIN GOPHER. Type from the Pryor Mountains, Montana, at 6000 feet altitude on head of Sage Creek. Adult d\ No. 66,469, IT. S. Nat. Mus., Biological Survey Collection. Collected July 16, 1894, by Vernon Bailey; original number, 4646. Character*.— Size of clnsius , with low, wide skull, short nasals and projecting incisors. Color darker than that of chtsius ; upperparts dull walnut brown, about as in fossor ; nose plumbeous; cheeks dark gray; ear patch black; lowerparts dark buff with no trace of white in topotype series; feet and tail soiled whitish or huffy. Measurements of type. — Total length, 210; tail vertebrae, 60; hind foot, 29. Thomomys bottae minor subsp. nov. MENDOCINO GOPHER. Type from Ft. Bragg, Mendocino Co., California. Adult cf\ No. 146,463, U. S. Nat. Mus., Biological Survey Collection. Collected November 30, 1905, by James 11. Gant; original number, 4187. Characters. — Size smaller than bottae ; skull narrower and slenderer with especially slender rostrum and deeply einarginate posterior tip of nasals. Color slightly darker than in bottae ; upperparts dark cinnamon brown, heavily obscured with black, and in most specimens becoming almost black on nose, face, and around ears; feet white; tail grayish ; lowerparts ochraceous-buff; lips and lining of cheek pouches usually white. Measurements of type. — Total length, 226; tail vertebrae, 73; hind foot, Bail? if — EU ven Xew Specie* and Subspecies of Pocket Gophers. 117 Thomomys neglectus sp. nov. SAN GABRIEL GOPHER. ' Type from San Antonio Peak (Hoar Flat Meadows* at (>400 feet altitude) in the San Gabriel Mountains, California. Adult cP, Xo. 137, SOU, 1 T . S. Nat. Mus., Biological Survey Collection. Collected July 23, 1903, hy James H. Cant; original number, 37 lit. Characters . — Size medium, skull long and narrow with almost straight dorsal outline. Color very dark with excess of clear black; upperparts dark gray produced by a heavy mixture of black-tipped hairs over dull butt’; nose, fact*, and ear patch blackish; tail gray, feet whitish; lower- parts dull Im tl*. Measurements of type . — Total length, 229; tail vertebrae, 77; hind foot, 31 (32 measured dry). Thomomys mearnsi * sp. nov. M EARNS GOTHER. Type from Gray’s Ranch in Animas Valley, southwest corner of Xew Mexico. Adnlt d\ Xo. 137,008, V. S. Xat. Mus., Biological Survey Collection. Collected August 10, 1908, by E. A. Goldman ; original num- ber, 19,939. Characters . — Slightly smaller than fnlvus ; skull short and wide with very slender, projecting incisors, much as in nelsoni. Color, upperparts dull cinnamon with blackish nose and ear patches; lowerparts pale cin- namon; tail butty gray; feet whitish. Measurements of tyjie . — Total length, 220; tail vertebne, 07; hind foot, 31. Thomomys fuscus columbianus subsp. nov. GOLEM BI A GOPHER. Type from Touchet, Walla Walla County, Washington. Adult cJ\ Xo. t T . S. Xat. Mus., Biological Survey Collection. Collected September 10, 1890, by Clark P. Streator; original number, 234. Characters . — Size much larger than fuscus, slightl} T larger than quad- ratics ; skull heavier than that of quadratics ; colors paler than either, about as i u fisheri. Upperparts light fawn color or butty gray; sides and belly pale huffy gray; ear and postauricular patch black; nose slaty; tail gray with white tip; feet whitish. Measurements of type . — Total length. 209; tail vertebne, 60; hind foot, 2S. Thomomys fuscus saturatus subsp. nov. GOECR D'ALENE GOPHER. Type from Silver (near Sal tese) in the western corner of Missoula County, Montana, at 4300 feet altitude, in the Coeur d’Alene Mountains. Adult * I take pleasure in naming this gopher for Dr. E. A. Mearns, who has contributed so much to our know ledge of the mammals along the northern boundary of Mexico. 118 Proceedings of the Biological Societg of Washington . d\ No. I T . 8. Nat. Mus., Biological Survey Collection. Collected June 20, 1891, by Clark I*. Streator; original number, 979. Characters. — Considerably larger than fuscus ; skull long and high with narrow brainease and wide nasals. Color darker and richer than in fuscus; upperparts dark hazel, becoming more yellowish on sides, and this shading into huffy wash on lower parts; ear patches black; nose plumbeous; feet and tail huffy gray. There is rarely a trace of white on chin or throat. Measurements of type. — Total length, 225; tail vertebrae, 77; bind foot, 20 . Thomomys fuscus loringi subsp. now ALBERTA GOPHER. Type from South Edmonton, Alberta. Adult d\ No. 08,740, V. S. Nat. Mus., Biological Survey Collection. Collected September 23, 1894, by .1. A. Coring; original number, 2437. Characters. — Similar to fuscus hut slightly larger and duller colored, with relatively heavier dentition, and small, circular interparietal; ears small and pointed as in th o fuscus group. Color in winter pelage (Sep- tember 20): Upperparts dull russet brown, becoming rich buff on sides; nose slaty gray; small ear patch black; lowerparts rich huffy over plum- beous; chin and small spot on breast white; feet soiled whitish; tail pale huffy. Other pelages not known. Measurements of type. — Total length, 199; tail vertebne, 47; hind foot, 25. Thomomys nevadensis atrogriseus subsp. now SNAKE RIVER GOPHER. Type from Nampa, Idaho. Adult d\ No. 181,198, IT. S. Nat. Mus., Biological Survey Collection. Collected March 15, 1913, by L. E. Wyman ; original number, 35. Characters. — About the size of nevadensis and also dichromatic, but darker colored in gray phase and blacker in melanistic phase. Skull relatively wider at base and with shorter, thicker pterygoids. Color in gray phase: Upperparts dark huffy gray or sooty huff; nose and face blackish; ear patch black; feet and tail dirty gray; lowerparts washed with rich buff’; cheek pouches lined with black and white ; chin white. Color in black phase: Dull slaty black all over except white patch on chin and white toes, and usually lower part of feet. Measurements of type . — Total length, 315 ; tail vertebra*, 100; hind foot, 38.